Steam cook-stove.



1. M. WILSON. STEAM COOK STOVE.

APPLICATION FILED NOV. I9. 1915.

Patented May15, 1917.

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J. M.. WILSON.

STEAM COOK STOVE.

APPLICATION FILED N0v.19, 1915.

Patented May 15, 1917.

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ATTORNEY,

' WITNESSES.-

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JOHN M. WILSON, OF WIGHITA, KANSAS, ASSIGNOR 0F ONE-THIRD TO VERNON E.

MITCHELL AND ONE-THIRD T0 KEITH AND WEIGHT, A FIRM GONSISTING OF WIL-LIAM KEITH AND MONROE WRIGHT, ALL OF WIOHITA, KANSAS.

STEAM COOK-STOVE.

Specification of Letters Patent.

Ratented May 15, 1917.

Application filed November 19, 1915. Serial No. 62,393.

To all whom it may concern:

Be it known that I, JOHN M. WILSON, a citizen of the United States,residing at Wichita, in the county of Sedgwick and State of Kansas,.haveinvented certain new and useful Improvements in Steam Cook- Stoves, ofwhichthe following is a specification.

My invention relates to steam cook stoves, and one object is to providea stove in which the pressure as Well as the temperature of steam isutilized in a steam tight oven for cooking purposes.

By utilizing steam pressure in a tight oven, heat is forced through themeats or other foods being cooked, and hence will prove more efficientand economical than where it is used in the customary way under littleor no pressure.

By cooking the food in a steam tight oven its natural flavor isconserved, loss from shrinkage is reduced to a minimum, and closeattention on the part of the chef is not reuired, as all danger ofburning the food is 0 viated. i

Other objects of the invention will hereinafter appear, and in orderthat said invention may be fully understood, reference will now be madeto the accompanying drawings, in which:

Figure 1 is a broken front elevation, partly in section, of a stove madein accordance with my invention.

Fig. 2 is a vertical cross section on line IIII of Fig. 1. x

Fig. 3 is a longitudinal section of a steam oven and attachments on lineIII of Fig. 2.

Fig. 4 is an enlarged broken'side elevation of the forward portion of asteam oven and attachments.

Fig. 5 is a vertical section on line V of Fig. 2, of athree-way valveemployed in carrying out the invention.

Fig. 6 is a section on line VI of Fig. 4.

In carrying out the invention, I employ a case 1 of rectangular or othersuitable configuration, which in the present instance, among otherfeatures, embodies warming, roasting and baking ovens 2, 3 and 4, respectively. Oil or gas burners 5 are interposed between the ovens 2 and3, and similar burners 6 are placed under the oven 4 for the purpose ofheating said ovens. Burners 7 are placed under removable lids 8 at thetop of the stove immediately above the baking oven 4. When desired thestove may be arranged for other than oil or gas fuels.

, 9 designates a hot water. coil arranged in the lower portion of thecase 1 adjacent one side of the warming and roasting ovens 2 and 3,respectively. The lower end of said coil 9 communicates with the lowerend of a boiler 10, while its upper end communicates with the upperportion of said boiler, a chamber being left between the water line andthe dome of the boiler for the accumulation of steam to be utilized forcooking purposes.

The height of the water within the boiler 10 can be readily ascertainedat all times by a water gage 10 arranged exteriorly of the case 1 andcommunicating at its upper and lower ends with said boiler. The steampressure within the boiler is ascertained by a steam gage 12,communicating with said boiler through pipes 13 and 14.

Steam from the boiler is utilized for cooking purposes in steam ovens15, horizontally arranged in the upper portion of the case 1, so thatheat from the burner 11, the hot water coil 9 and the boiler 10, in itspassage to a stove-pipe A, at an upper corner of the stove, willcirculate around said steam ovens 15 and thus aid the steam from theboiler 10 in the cooking process. A portion'of the heat from the burner11, the hot water coil 9 and the boiler 10, also circulates around thewarming, roasting and baking ovens 2,

3 and 4, respectively, and cooperates with the heat from the burners 5and 6 in keeping said ovens hot.

Returning to the steam ovens 15, it will be noted that they communicatewith the dome of the boiler 10 through the pipe13 and branch pipes 16,which latter communicate with the former-through a four-way coupling 17and are tapped into the undersides of said steam ovens l5. Three-wayvalves 18 are fitted to the branch pipes 16 between the coupling 17 andthe steam ovens 15, so that steam may be admitted to either ovenindependently of the other when desired. The valves 18 are alsoconnected to an exhaust pipe 19, whereby the condensed steam from theovens 15 may be conducted to a dishwasher or otherwise disposed of. Eachvalve 18 has a transverse port 20 extending therethrough and a branchport 21 communicating with said transverse port and adapted tocommunicate with a branch pipe 16. The plug 22 of each valve has a stem23 extending out through the front of the case 1 and provided with asuitable handle 24.

Each steam oven 15 is supported by the front wall of the case 1 and astrap 25 bent in U-form and suspended from the top of said case 1. Saidovens15 may be of any desired cross sectional configuration. 1 prefer tomake them of cylindrical form as shown, in order to better withstand thesteam pressure to which they are subjected. Each is reinforced adjacentits forward open end by a collar 26 and has a steam tight lid 27 with amarginal groove 28 provided with a gasket 29, adapted to bear againstthe front edge of an oven. Each lid 27 is reliably held in positionagainst the front end of its respective oven 15 by a transverse bar 30,

provided with a lever 31 and j ournaled in diametrically opposedbearings 32 integral or otherwise permanently secured to the lid. Theterminals 33 of bar are eccentric to the axis of said bar and projectlaterally beyond the bearings 32 to engage the looped forward ends 34 ofa pair of tension-rods 35, extending rearwardly through a cross bar 36and provided at their threaded rear terminals with nuts 37, whereby theymay be adjusted longitudinally into proper relation to the bar 30. Therear ends of the tension rods 85 are supported by brackets secured tothe sides of the respective ovens 15. By employing the bar 30, with itslever 31 and eccentric terminals 33, it is obvious that the lid 27 canbe closed so tightly as to render the joint between it and itsrespective oven steam tight on applying a small amount of power to saidlever 31.

In practice, the warming, roasting and baking ovens 2 to at, inclusive,may be heated independently of the steam ovens 15, but when the latterare to be utilized the burner 11 is lighted, so that the heat ascendingtherefrom will heat the water coil 9 and generate steam in the boiler10. While steam is being generated. heat from the burner 11 in itspassage to the stove-pipe A, circulates around the ovens 15 and warmsthe same preliminary to placing meats or other foods therein. After foodhas been placed in the ovens 15 and the lids 27 have been firmly clampedinto position, the valves 18 are opened to admit steam to said ovens. Asthe steam cannot escape from the ovens the pres sure therein soonapproximates that in the boiler and forces the heat throughout the food,thereby cooking the same in comparatively short time and effecting acorresponding saving in fuel. A. further saving in fuel is effected bythe waste heat ascending from the burner 11, the coil 9 and the boiler10, which circulates around the ovens 15, there by superheating anddrying the steam therein, so that it will prove a very efficient cookingagent. If one or more of the ovens to 4, inclusive, are being usedsimultaneously with the ovens 15, the waste heat from the burners 5 and6 circulates around said ovens l5, and thus aids in the cooking process.From the foregoing it will be understood that the ovens 15 are placed insuch relation to the burners 5, 6 and 11, the heating coil 9, and theboiler 10, as to utilize all waste heat ascending therefrom in itspassage to the stove pipe A.

On completion of the cooking process the valves 18 are adjusted to cutoff the steam from the boiler 10 and open communication between theovens 15 and the exhaust pipe 19, so that any condensed steam withinsaid ovens is drained therefrom. The levers 81 are then pulled down torelease the tension on the rods 35, after which the looped ends of thelatter are moved laterally out of engagement with the eccentrics 33 topermit the removal of the lids 27 NVhile I have shown and described thepreferred form of my invention, I reserve the right to make such changesin the construction, arrangement and proportion of parts, as properlyfall within the spirit and scope of the claims.

Having thus described my invention, what I claim and desire to secure byLetters Patent, is:

1. In a cook stove, a casing, a front oven, a pair of superposed ovensarranged to the rear of the front oven and adjacent to but spaced fromthe latter, heating means for the front oven arranged therebeneath andopposite to the lower of the pair of ovens,

heating means for the pair of ovens arrangedv in the space between thelatter and opposite to the rear of the front oven, a boiler arranged tothe rear of the pair of ovens and spaced from the latter, a pair ofsteam ovens connected to the boiler and arranged respectively over thelatter and over the upper of the first named pair of ovens, and heatingmeans for the boiler arranged therebeneath and adjacent to the loweroven of the first named pair of ovens.

2. In a cook stove, a case, a pair of steam ovens in the case, a steamboiler, a pipe eX- tending from the boiler and having combined steamsupplying and. drainage branches connected to each oven, a threewayvalve for each oven arranged in each branch of the pipe, a common drainpipe connected to each three-way valve, and means to operate the valvesindependently whereby to allow steam to enter either oven and to allowdrainage of either oven independently or simultaneously.

3. In a cook stove, a casing, a pair of superposed ovens therein,heating means for said ovens arranged in the space between the latter, aboiler at one end of the pair of ovens and extending across the spacebetween the ovens so as to receive heat from said heating means, a pairof steam ovens connected to the boiler and arranged respectively overthe latter and over the upper 10 oven of said pair of ovens, and heatingmeans for the boiler arranged therebeneath JOHN M. WILSON. Witnesses:

VERNON E. MITCHELL, F. G. FISCHER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. 0. v

